Compiler return codes

At the end of compilation, the compiler sets the return code to zero under any of the following conditions:

No messages are issued.
The highest severity level of all errors diagnosed is less than the setting of the -qhalt compiler option, and the number of errors did not reach the limit set by the -qmaxerr compiler option.
No message specified by the -qhaltonmsg compiler option is issued.

Otherwise, the compiler sets the return code to one of the following values:

Return code	Error type
1	Any error with a severity level higher than the setting of the -qhalt compiler option has been detected.
40	An option error or an unrecoverable error has been detected.
41	A configuration file error has been detected.
249	A no-files-specified error has been detected.
250	An out-of-memory error has been detected. The compiler cannot allocate any more memory for its use.
251	A signal-received error has been detected. That is, an unrecoverable error or interrupt signal has occurred.
252	A file-not-found error has been detected.
253	An input/output error has been detected: files cannot be read or written to.
254	A fork error has been detected. A new process cannot be created.
255	An error has been detected while the process was running.

Note: Return codes can also be displayed for runtime errors. For example, a runtime return code of 99 indicates that a static initialization has failed.